MZI has been powering and maintaining infrastructures throughout Chicago and the East Coast with through development of specialized equipment, low customer impact and efficient crews to become an industry leader in utility management. Our commitment to creating energy efficiencies and optimizing voltage technology creates savings for consumers and businesses as well as makes future repairs safer for workers.

Our Services

As one of Chicago’s leaders in power transmission, delivery, and substation systems, we exceed client expectations at every turn. Our reputation and relationships with utility companies, specialized equipment, low customer impact, and efficient union crews has provided our clients with savings for consumers and businesses. We optimize voltage, create energy efficiencies, and plan for safety in future contingencies.


  • Below-grade Construction
  • Major equipment Installations & Yard Expansions
  • Control Building Installations
  • Corrective & Preventative Maintenance
  • Inspections, Oversight & Coordination
  • AMI/SCADA Revenue Metering
  • Statice Synchronous Compensators (STATCOM)


  • Turn-key substation construction through 500 kV
  • High voltage cable installation, splicing and termination
  • Installation and commissioning of transformers and switchgear
  • SCADA installation
  • Substation testing, commissioning and maintenance
  • Project and construction management
  • Preventative maintenance
  • Infrared scanning
  • Arc flash studies
  • Security Fencing
  • Substation drilling
  • High Rise Networks

Drilling Services

  • Design Build
  • Substations
  • Transmission Lines
  • Bridges
  • Buildings
  • Marine Operations
  • Lift Stations


In partnership with ComEd, MZI became a driving force behind smart meter installation and manhole cover refurbishment throughout Chicago and the East Coast. Assessed and refurbished over 6,200 manholes in Illinois as a part of the grid modernization program (Energy Infrastructure Management Act) improving the safety and reliability of the electric grid, shortening power outages for families and businesses, and ensuring the safety of future workers.

Our Services

MZI sits as a leader in Telecommunications within the Midwest and across the United States. Powered by a belief that everyone everywhere can be connected, we deliver top tier communication infrastructure to ensure faster speeds and reliable cellular technology. 

Recent Projects

MZI Group Services

Welcome to MZI. At MZI, we serve a diverse range of public and private sector clients seeking help with telecom, electrical and mechanical construction, energy infrastructure, utility projects, design-build and facility services in Chicagoland, the Midwest and across the United States of America. We have been a leading player in our industry since way back in 1999.


At MZI, we are proud to be one of the leading suppliers of electric solutions in the Midwest and across the nation. We have an extensive background in providing first-class electric solutions and relationships with utility providers to make it seamless.  

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Power & Utility

As specialists in power & utility, we provide comprehensive solutions to even the most complex challenges. With established partnerships in the industry, MZI can successfully manage projects of all sizes that achieve excellence.  

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Building Services

Our highly specialized labor force, as well as our fully integrated system of services, allows us to deliver outstanding value in facility management. We optimize our services for clients to receive the highest level of care.  

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Serving a wide range of clients from the public and private sectors, we specialize in the design-build and plan-spec of commercial and industrial heating, ventilation and cooling systems.

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With over 100 years of experience, our deep industry expertise, digital innovation, and utilization of leading-edge technology drives tangible success in connecting clients and communities across the nation. 

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Exceeding client’s expectations, while providing quality and best-in-class results, we implement installations for commercial, educational, healthcare, hotel, and industrial facilities both direct to building engineers and direct to owner.  

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